Ac Blower Fan Not Working In Auto Mode

The heat and fan worked well over winter.

Ac blower fan not working in auto mode.

However if the system is in cool mode and the fan is set to auto nothing happens. If i turn the system on with the fan on auto the fan will never spin up but the a c does make noise like it s doing something sorry for the laymans jargon but i m not the most experienced with hvac stuff also if i try to switch the fan to on after the a c is already switched to on the fan still does not turn on. If i have problems still i will return. I can also turn the fan mode to on and the fan will run.

The inside fan doesn t run when in auto mode. Maybe i was just impatient before when i was testing it. Fan will not come on in the on position or your fan will not come on when you turn the thermostat down in the air conditioning mode. So for some reason the auto fan mode does not work.

The outside unit keeps running when cool on. All the wires in the thermostat seem connected so i am at a lost for the cause. I read somewhere the blower had a 4 min count down before turning on again. As a side note i was a bit worried of fire if the blower did not turn on.

The ac compressor outside works fine. My home ac fan blower does not work in auto mode but it does work when i slide the switch to on. If i leave the fan on then the ac works fine cooling correctly. Wiggled green wire where it connects in the air handler and auto fan mode seems to be working now.

Is the thermostat not working correctly or something in the ac unit causing it to do this.